氮肥分期运筹对套作甘薯产量、品质及氮素效率的影响

安建刚,敬夫,丁祎,肖怡,尚浩浩,李宏利,杨晓璐,唐道彬,王季春

Effects of Split Application of Nitrogen Fertilizer on Yield, Quality and Nitrogen Use Efficiency of Sweet Potato

Jian-Gang AN,Fu JING,Yi DING,Yi XIAO,Hao-Hao SHANG,Hong-Li LI,Xiao-Lu YANG,Dao-Bin TANG,Ji-Chun WANG

图1 万薯10号β-胡萝卜素含量 A: 甘薯单作; B: 玉米/甘薯; NOA: 定量氮肥全部基施; NSA: 定量氮肥分2期运筹; NTA: 定量氮肥分3期运筹。图柱顶端不同字母表示处理间差异达到0.05显著水平。

Fig. 1 β-carotene content of Wanshu 10 A: sweet potato monocropping; B: sweet potato-maize interplanting; NOA: single N application, NSA: 2-split N application, NTA: 3-split N application N. Bars superscripted by different letters are significantly different between treatments at the 0.05 probability leave.